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osvGoogleOSV:GHSA-6XX3-RG99-GC3P
HistoryAug 13, 2021 - 3:22 p.m.

Timing based private key exposure in Bouncy Castle

2021-08-1315:22:31
Google
osv.dev
15

0.001 Low

EPSS

Percentile

47.9%

Bouncy Castle BC Java before 1.66, BC C# .NET before 1.8.7, BC-FJA before 1.0.2.1, BC before 1.66, BC-FNA before 1.0.1.1 have a timing issue within the EC math library that can expose information about the private key when an attacker is able to observe timing information for the generation of multiple deterministic ECDSA signatures.